my vote goes to time-out. What I would do is convey that visually: have the task fade out slooooowly, as it reaches invisible state, it's actually deleted, unti

my vote goes to time-out. What I would do is convey that visually: have the task fade out slooooowly, as it reaches invisible state, it's actually deleted, until then, the undo-link is available. (Which probably should not fade out)